Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac (2024)

FAQs

How do I reinstall Office 2021 on my Mac? ›

You can purchase Microsoft 365 subscriptions for both Mac and Windows. Office Home & Business 2021 or Office Home & Student 2021 are also available for Mac as a one-time purchase. Office applications available for a Mac are Word, Excel, PowerPoint, Outlook, and OneNote.

Once you verify you have a license, anytime you need to install or reinstall Microsoft 365 you can go straight to the section below, Sign in to download Office and select the tab for steps to install on a PC or Mac. You'll sign in with your work or school account for these versions of Microsoft 365.

Will Microsoft 365 be identical on a PC and a Mac? No. Apps are tailored to work best on each operating system. The apps available for Mac users and the specific features included may be different from those available for PC users.

The latest version of Office for Mac is available via a Microsoft 365 subscription which costs from $69.99/£59.99 per year or $6.99/£5.99 per month).

One of the main differences between using Office for Mac versus a Windows computer is that the File menu is located on the application toolbar at the top of the screen. Depending on which application you are using, the File menu options change accordingly.

We recommend that you uninstall any previous versions of Office before installing Microsoft 365 Apps. To help you uninstall versions of Office that use Windows Installer (MSI) as the installation technology, you can use the Office Deployment Tool and specify the RemoveMSI element in your configuration.

What happens if I uninstall Microsoft Office 365? ›

Tip: Uninstalling Microsoft 365 only removes the Microsoft 365 applications from your computer, it doesn't remove any files, documents, or workbooks you created using the apps.

Before you Install Office 365

You need to uninstall any previous versions of Microsoft Office including 2007, 2010, 2013, and/or 2016. If you do not uninstall previous versions of Microsoft Office and you install Office 365 your computer will not run any program of Office 365 properly.

Before you can install Office, you'll need to remove Microsoft 365.

Yes you will lose Office, and all of your other applications and personal data files. So, before you re-install Windows, do a full image copy backup of your current situation. That way you will be able to recover any missing files.

Depending on your Office 365 plan, you can access Office apps that you can install on up to five devices, including your computers and mobile devices.

Follow the steps below for Windows 10 or later. Right-click the Start button and select Apps and Features. Scroll through the list until you see one or more entries for Microsoft Office. You'll see your edition, such as Office 365, as well as your version (or build) number.

If you encountered a problem while installing Office on a PC, try restarting your computer and then attempting to install Office again. If that didn't help, use this easy fix tool to uninstall Office completely. After your uninstall is complete, try reinstalling Office.

Tip: Uninstalling Office only removes the Office applications from your computer, it doesn't remove any files, documents, or workbooks you created using the apps.

Do I need a product key to reinstall Office? No, you don't. Just go to the Microsoft account, Services & subscriptions page and sign in using the Microsoft account that you used to buy Office. We can help if you forgot your Microsoft account or password.

How long does it take to reinstall Microsoft Office? ›

NOTE: Installing MS Office can take 30 mins to an hour. Do not start the install process unless you are going to be on a stable internet connection for the duration of the installation.

Office 365 Works for PC and Mac Seamlessly

Office 365 can offer your mixed office these benefits: Share documents easily using the same subscription software for both PC and Mac.

Can I transfer Microsoft Office from a PC to a Mac? Yes, you can use the entire Microsoft Office suite on a Mac, and if you have a Microsoft 365 business account, you should be able to transfer your information seamlessly.

Get Microsoft 365 apps for Mac

Start quickly with the most recent versions of Word, Excel, PowerPoint, Outlook, OneNote, and OneDrive—combining the familiarity of Microsoft 365 and the unique Mac features you love.

Microsoft Office Professional 2021 lifetime license: $40

Microsoft Office is used by businesses, schools and individuals around the globe and is often considered the default when it comes to productivity apps. Microsoft Word, for instance, is the industry standard when it comes to word processing.

With a lifetime license, you'll keep the 2021 version of Microsoft Office rather than getting the latest software updates as they're released like you would with Microsoft 365. For most users, the savings will be well worth it.

Microsoft 365 or Office suite

You can use Word, Excel, and Powerpoint on your iMac, MacBook, or MacBook Mini. You just have to buy this software separately, because it's not included with a Mac by default. We have a lot of Microsoft 365 and Office suites that are specially created for your Mac.

iWork is an office suite of applications created by Apple Inc. for its macOS, iPadOS and iOS operating systems, and also available cross-platform through the iCloud website.

Do you have to pay for Word on Mac? Yes, you need a Microsoft 365 subscription or one-time purchase of Office 2021 to use Microsoft Word on your Mac. Microsoft 365 subscription costs $69.99/year for a home/personal use version, and up. Microsoft 365 Business Basic is currently $5/month per user.

While both Macs and PCs can be used for most essential business functions, Macs tend to be more popular for artistic endeavors. Graphic designers, video editors, audio engineers, app developers, web developers, and other creative professionals often prefer the intuitive design and high-quality applications and tools.

Will I lose my emails if I uninstall Office 365? ›

Regarding your concern if your files and emails will be deleted after uninstalling Office, it will not delete your files. But your email will depend if your emails are available online. If that is already deleted from the website or email domain, you can't have that back again.

Admins and users no longer have access to the services or Microsoft 365 apps that came with the subscription. All customer data—from user data to documents and email—is permanently deleted and is unrecoverable. At this point, you can't reactivate the subscription.

With Microsoft 365, you can install Office on all your devices and sign in to Office on five devices at the same time. This includes any combination of PCs, Macs, tablets, and phones.

If you have problems with Microsoft 365 or Office 365, you can uninstall it and reinstall it on your Windows 10/11 computer. You can press Windows + S, type add or remove programs, and choose Add or remove programs system settings.

You simply need to deactivate your Office 365 subscription from your first computer, install it on your new system, and activate the subscription there. Here is a stepwise solution on how to transfer Microsoft Office to another computer via Office 365 subscription.

One of the possible reason for this cause is due to corrupted Office installation files, in this kind of situation we suggest you completely uninstall Office application by using uninstall support tool (Option 2) and deactivate your device from the Office 365 portal (login to your Office 365 portal> Click on the ...

How is Office 365 different from previous versions of Office? Office 365 is a subscription-based service, meaning rather than buying a copy of the suite outright for a one-time, up-front cost, users instead pay a monthly subscription fee to access the service at a level of their choosing.

If you have a Microsoft 365 subscription or non-subscription version such as Office Home and Business 2021, 2019, 2016 or 2013, in most cases you can't run these versions together on the same computer.

Microsoft 365 for the web is a free version of Microsoft 365 that you can use in a web browser. All you need is to sign up for a Microsoft account with a new or existing email address. Use Word, Excel, PowerPoint and more for free on the web.

Microsoft 365 plans include Office 2021 as a part of a greater offering. It also includes Windows 10 Enterprise, Enterprise Mobility + Security (EMS), and machine learning. There are multiple plans to choose from depending on your needs. The services included in Microsoft 365 are also available as separate licenses.

Can I move Microsoft Office 2021 to my new computer? ›

Hi, you can transfer your Office Home and Student 2021 on your new other computer by signing into your Office Account at: https://account.microsoft.com/services You need to sign in with the same Microsoft Account that you used to purchase your Officer from Microsoft Or used with a Product Key purchased from a third ...

Office 2021 can be installed on one Windows 10 or Windows 11 PC or one of the three most recent macOS versions.

Just for future reference, if you do an erase of your drive and reinstall Mac OS, you will delete ALL your files, ALL your applications, absolutely EVERYTHING.

You can install Microsoft Office for free on up to 15 devices in total (five installations on Windows and MAC devices, five installations on smart phones and five on tablet devices). Please note, you are only able to install the applications on devices that you personally own.

Last but not least, a local reinstall is typically faster and more reliable than a cloud download. This is because the files are downloaded from your hard drive rather than from the internet. This means that there is no need to worry about internet connection speeds or bandwidth limitations.

Support for retail versions of Office 2021 will end on October 13, 2026; unlike older versions of Office, there is no extended support period.

Office 2021 is a one-time purchase that comes with classic apps like Word, Excel, and PowerPoint for PC or Mac, and does not include any of the services that come with a Microsoft 365 subscription.

How do I install Office 2021 with product key? ›

Just for future reference, if you do an erase of your drive and reinstall Mac OS, you will delete ALL your files, ALL your applications, absolutely EVERYTHING.

Usually this is the result of not having installed Mac OS and/or Office updates. To install Mac OS updates, on the Menu Bar click the Apple (first button on the left end of the menu bar). From the Menu choose System Preferences or System Settings. Then find Software Update and let it update Mac OS.

On the Outlook toolbar, go to Tools > Accounts. In the left pane, select the account you want to reset. On the bottom left, click the three dots and select Reset Account from the list.

Click the Reset button under the Reset section to reset Microsoft Office. It will reinstall Microsoft Office and revert to default settings.

To restart, simply exit the Microsoft 365 applications, such as Word or Outlook, and start them again.

You'll receive a product key if you buy a one-time purchase Office or individual Office apps, but you won't need or receive a product key for Microsoft 365. To renew your Microsoft 365 subscription, you can buy an Microsoft 365 product key card from a retailer and redeem the key at https://microsoft365.com/setup.

How to activate Office 365 2021 without product key? ›

The biggest difference between Microsoft Office 365 vs 2021 is that Office 365 is a subscription service, while Office 2021 is a one-time purchase. This means that with Office 365, you always have the latest version of the software and access to online storage and collaboration features.